Verb optimization

The examine, pull, and point verbs now below to the mob instead of all atoms. Based on discussion here: http://www.byond.com/forum/?post=1326139&page=2#comment8198716
The new examinate-verb is also responsible for blindness/unconscious checks, meaning it's no longer necessary to re-add these checks in every examine()-proc one consider it necessary

As a bonus ghosts can now point. Ghost pointing is normally only visible to other ghosts, unless the ghost in question has been made visible by cult activities. Spooky.

Commit 1 includes all the important code changes. Commit 2 is basically just updating all examine procs to use the new format.
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